摘要
The Mabeng granitic intrusion, which occurs in the northwestern T-S gold ore field, presents intruive contact with the country rocks. The facies zoining in it is obvious and its mineral components are relatively simple. Its petrochemic characteristics demonstrate that it is hornblende-biotite granite with aluminium-alkali oversaturation, meanwhile its petrogeochemical features show a high gold content with a concentrational coefficient 12. 2. Its REE suggests that its internal different facies are the differentiational products of magma from the same source. All of those support the suggestion that the intrusion is originaly magmatic genesis and belongs io the I-type of granite. The original magma of the body comes from the deep crust or the upper mantle and is highly auriferous.
The Mabeng granitic intrusion, which occurs in the northwestern T-S gold ore field, presents intruive contact with the country rocks. The facies zoining in it is obvious and its mineral components are relatively simple. Its petrochemic characteristics demonstrate that it is hornblende-biotite granite with aluminium-alkali oversaturation, meanwhile its petrogeochemical features show a high gold content with a concentrational coefficient 12. 2. Its REE suggests that its internal different facies are the differentiational products of magma from the same source. All of those support the suggestion that the intrusion is originaly magmatic genesis and belongs io the I-type of granite. The original magma of the body comes from the deep crust or the upper mantle and is highly auriferous.
